EE , the UK mobile operator that is part of BT Group plc (NYSE: BT; London: BTA), is to convert the use of 2100MHz spectrum from 3G to 4G on more than 500 of its towers over the next six months, in a move it is presenting as a prelude to the introduction of 5G in 2019. The upgrades will take place on what EE describes as mobile Internet hotspots across the country's major cities, including London, Glasgow and Cardiff. 5G sites will be built on top of the upgraded sites that have the maximum amount of 4G spectrum, adds EE.

France-IX Services , the French Internet peering company, has joined forces with cybersecurity specialist Acorus Networks, offering members of the France-IX community access to Acorus's security offerings. Unlike some rival products, says Acorus, these offerings protect both the network and the application layer without the need for additional on-premises hardware.

UK pay-TV giant Sky has joined Fox, Turner and Discovery in a funding round for SDVI, a Silicon Valley startup that provides a cloud-based service for media companies wanting to better manage applications and resources across what it calls its content supply chain. Sky is investing $2 million into the company, which it sees as potentially improving the efficiency of a core part of its business.

Nokia Corp. (NYSE: NOK) is going to use this week's Mobile World Congress Americas show in Los Angeles to demonstrate, in partnership with Sprint Corp. (NYSE: S), a 5G New Radio connection over a dual mode-capable Massive MIMO radio -- the first time such a demo has been carried out in the US, say the two companies. The Nokia AirScale Massive MIMO Active Antenna is expected to deliver up to 3Gbit/s peak downlink throughput for a single sector over 5G and LTE simultaneously using Sprint's spectrum.

A researcher from cybersecurity firm RiskIQ claims to have found a malicious script inserted into the British Airways website, which was the subject of a significant data breach between August 21 and September 5 affecting around 380,000 transactions. According to the BBC, the researcher says he found evidence of a "skimming script" designed to steal data from online payment forms.